MESON Chess Problem Database

Problem Display
PID: 268967 (2R1K3/pB1N2B1/8/1P4Q1/r1P1P1Rp/ppPk2r1/P3pp2/N3b3 w - - 0 1)

Einat, Paz

Retter, Yosef

5/8 Place, 09. WCCT, 2012-2013

2R1K3/pB1N2B1/8/1P4Q1/r1P1P1Rp/ppPk2r1/P3pp2/N3b3

#2

13 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Re3
      • 2.Qd5#
    • 1...h3
      • 2.Rxg3#
  • Tries
    • 1.Bd5?
      • threat
        • 2.Sc5#
      • 1...Rxc4
        • 2.Bxc4#
      • 1...Re3!
    • 1.Bd4?
      • threat
        • 2.Se5#
      • 1...Re3
        • 2.Qxe3#
      • 1...Bxc3!
    • 1.Qc1?
      • threat
        • 2.Se5#
      • 1...Bxc3
        • 2.Qxc3#
      • 1...Bd2!
    • 1.axb3?
      • threat
        • 2.Sc5#
      • 1...Re3
        • 2.Qd5#
      • 1...Rxc4!
  • Keys
    • 1.Rd8!
      • threat
        • 2.Sb6#
      • 1...Kxc4
        • 2.Qd5#
      • 1...Rxc4
        • 2.Sc5#
      • 1...Bxc3
        • 2.Se5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • R(g);P_PINP(E),SBLOCK::QAR2(H)
    • P(i);N_GUARD::R(F),XR(g)
  • Tries
    • Try
      • B(I);
      • Threat
        • S(J)
      • Vars
        • R(h);OGATE,XP(D)::B(I),XR(h)
      • Refutation
        • R(g);P_PINP(E)
    • Try
      • B(K);
      • Threat
        • S(J)
      • Vars
        • R(g);N_GUARD,P_PINP(E)::QAR1(H),XR(g)
      • Refutation
        • B(a);XP(C)
    • Try
      • Q(H);
      • Threat
        • S(J)
      • Vars
        • B(a);OGATE,XP(C)::QAR1(H),XB(a)
      • Refutation
        • B(a);
    • Try
      • P(B);XP(e)
      • Threat
        • S(J)
      • Vars
        • R(g);P_PINP(E),SBLOCK::QAR2(H)
      • Refutation
        • R(h);XP(D)
  • Actual
    • R(L);
    • Threat
      • R(L)+S(J)
    • Vars
      • K(f);N_GUARD,S_FLIGHT,XP(D)::QAB1(H)
      • R(h);SBLOCK,XP(D)::R(L)+S(J),DCHECK
      • B(a);SBLOCK,XP(C)::R(L)+S(J),DCHECK
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